Choose the correct one

(a)

km > mm > cm > m

(b)

km > mm > m > cm

(c)

km > m > cm > mm

(d)

km > cm > m > mm

______ is not made of matter

(a)

gold ring

(b)

iron nail

(c)

light ray

(d)

oil drop

The important function of stomata is __________.

(a)

Conduction

(b)

Transpiration

(c)

Photosynthesis

(d)

Absorption

Choose the set that represents only biotic components of a habitat.

(a)

Tiger, Deer, Grass, Soil

(b)

Rocks, Soil, Plants, Air

(c)

Sand, Turtle, Crab, Rocks

(d)

Aquatic plant, Fish, Frog, Insects

When was the first computer introduced?

(a)

1980

(b)

1947

(c)

1946

(d)

1985

Electricity is produced in

(a)

transformer

(b)

power station

(c)

electric wire

(d)

television

____________ is the percentage of nitrogen in air.

(a)

78%

(b)

21%

(c)

0.03%

(d)

1%

Most organelles in an eukaryotic cell is found in the

(a)

Cell wall

(b)

cytoplasm

(c)

nucleus

(d)

Vacuole

A freely suspended magnet always comes to rest in the ________direction

(a)

North - east

(b)

South - west

(c)

East - west

(d)

North - south

Usage of chemical pesticides and fertilisers causes ________ pollution.

(a)

Air pollution

(b)

Water pollution

(c)

Noise pollution

(d)

None of the above